My Step-Dad's a Freakin Vampire! - the movie. Directed by David Matheny, Music by Douglas Edward. This is a film about creatures, vampires, and just a kid in high school having to pick up the mess. My Step-Dad's a Freakin Vampire! - the movie. Directed by David Matheny, Music by Douglas Edward. This is a film about creatures, vampires, and just a kid in high school having to pick up the mess.